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Full text of "The link-belt stair-lift : what it is, what it does."

S3 



Whsa it is 
What it does 



13 he 

LINK- 
BELT 
STAIR 
LIFT 




What it is 
What it does 



XSXcBt & 1babn 

DESIGNERS 

ILLUSTRATORS 

ENGRAVERS 

Ipbilafrclpbia 




LINK-BELT STAIR-LIFT INSTALLED 



J5he LINK-BELT STAIR-LIFT. 



Mechanical work, whether of man or 
machine, consists in the moving of material, 
and mechanical progress is only increase in 
the rate of movement. In handling inert 
material, it is well known that the continuous 
machine will carry far more in a given time 
than an intermittent apparatus requiring the 
same power for its operation. Yet it was 
not until the end of the nineteenth century 
that serious effort was made to convey people 
by continuously moving machines. The 
traveling sidewalk of the Chicago World's 
Fair was, to the world at large, the first 
demonstration of their advantage. The 
setting of this apparatus at an incline between 
two floors was obviously the next step, and 
such inclined elevators have been installed in 
a number of department stores here and 
abroad. Effort has also been made to 
replace the one-story elevator by practically 
detaching from each other the steps of a 
stair-case, securing them independently and 
consecutively to an endless chain, and thus 







e LINK-BELT STAIR-LIFT. 



producing actual traveling stairs, but the 
cost, the large amount of space occupied 
and the difficulty of securing safety at the 
upper landing constitute formidable objec- 
tions to this plan. 

It remained for Mr. James Mapes Dodge, 
an inventor whose best years have been 
given to the mechanics of elevating and con- 
veying, and whose eminence in his profession 
s equally recognized by the engineering world 
and the patent office, to present in the Link- 
Belt Stair-Lift a machine radical in its de- 
parture from precedent and complete in its 
fulfillment of all requirements. 

The existing demand is for a machine 
which, in department and other large stores 
and shops, will equalize the value of irst 
and second floors, and at railroad stations 
and in other places where large numbers of 
people are in constant passage from one 
level to another, provide an absolutely safe 
and inviting means of making the ascent. 



15he LINK-BELT STAIR-LIFT. 



Such a machine must be continuous in 
operation, as otherwise free movement of 
people will be impeded. Large passenger 
elevators installed in one of the most prom- 
inent railroad stations in the country show a 
maximum of seven people per minute during 
rush hours. 

A continuously moving machine at the 
rate of ninety feet per minute will have six or 
seven times this capacity. 

This machine must be absolutely safe 
and convenient for the use of women and 
children as well as of men; must be strong 
and durable, since the service is continuous, 
and must not be interrupted for repairs. It 
must be economical of space and capable 
of being harmonized with its surroundings 
for esthetic reasons. Its first cost must not 
be out of proportion with the value of its 
service, nor must the cost of operating be 
excessive. 



15he LINK-BELT STAIR-LIFT. 



How Completely 
the 

Link-Belt St^ir-Lift 
meets these 

requirements 

will appear from the 
following 

photographic views 
used in 

illustration. 




V 



T5he LINK-BELT STAIR-LIFT. 



The Link-Belt Stair -Lift follows the 
form of the normal staircase, but in place of 
the steps themselves a belt is used, comprised 
of a number of steel links which, when 
assembled, render flexibility in one direction 
possible while rigidity is secured in the other. 
This belt is deflected into level portions cor- 
responding to the treads of an ordinary 



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taw...-» 



\ 






V 




















LINK-BELT STAIR-LIFT. 



\ 







stairway and into inclined surfaces repre- 
senting the risers, and furnishes an 



Absolutely Solid, 
Secure e^nd 
Level Footing 

for passengers 
during the ascent. 




J5he LINK-BELT STAIR-LIFT. 







Its Linked 
Corvstrviction. 
makes it possible 



to run the entire belt around a very small 
sprocket roller at the head of the Stair- Lift 
and in close proximity to the dull edge of a 
plate level with the upper floor and slightly 
below the highest point attained by the 




8 ~ I-IN K IS* I I S I A I W I I * I 









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LINK-BELT STAIR-LIFT. 



The treads and risers, after passing 
around the head roller, again become a flat 
belt, thus greatly reducing the space required 




for their return and making the vertical 
depth of the Stair- Lift but a trifle more than 
that of an ordinary stairway. 



I 



T5he LINK BELT STAIR LIFT 



This ( tstructlon makes an exceedingly 

1 • iurab and safe appara' 
of I il h that bulldh - of onabi 

rength can car Ihe machine without the 
jcesslty of building special foundatior 

• r It. 

■ ;htne: appar and te 

'i the movi weight en 

n self >lle 



m 



he Link Belt Stair- L occupies b 






rt 



lit space on either floor. Its w 
ill U , three feet The b coi 

he steps twenty-( wld 

experience having shown th rer wldl 

>ti tot bring increased carrying cap 
The width of the ps and the ant ol 
ri prev ove owding and In re m- 
rt to passeng srysl pis oca 

avt i le rat ninety I i minir 




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15he LINK BELT STAIR-LIFT. 






with a passenger on each step, 3000 per 
hour can be elevated without crowding and 
without the delays due to waiting for an 

elevator. 

A Stair- Lift operating between two 

floors of a building requires under maximum 

load but five horse power of electric current. 

and, as no attendant is needed for loading or 

lloading passengers, its cost of operation is 

very low. 

The Stair-Lift can be stopped instantly 

from either floor, and may be used as an exit 
In case of fire or panic. 

The popularity of the Stair-Lift with 
women is a great card in its favor. The steps 
being level and giving as secure footing as the 
ground, a moving hand-rail is unnecessary 
and both hands are free, a great and highly 
appreciated advantage where they are accom- 
panied by children and carrying parcels. 



&he LINK BELT STAIR LIFT 



The Link-Belt Stair-Lift may be in- 
spected and tested at the works of the 
Link-Belt Engineering Company. Nicetown, 
Philadelphia, to which address all communi- 
cations for the Company should be sent. 



T5he Stair-Lift Co., 

£ £ Nicetown ££ 
PKilendelphia, Pa.